Double standard refers to
1 answer:
You might be interested in
Answer:
1. Double displacement reaction
2. Trisodium phosphate and potassium hydroxide
3. Sodium hydroxide and Potassium phosphate
Explanation:
1)
The given chemical reaction is as follows.
The balanced chemical reaction is as follows.
In the above reaction two reactants are exchange their cations. Therefore, it is a double displacement reaction.
2)
In the above reaction left side of the reaction is considered as reactants.
- Trisodium phosphate
- Potassium hydroxide
3)
In the above reaction right side of the reaction is considered as products.
- Sodium hydroxide
- Potassium phosphate.
Heat required = 173 kJ
<h3>Further explanation</h3>Given
56.0 g of ice
Temperatur at 263 K(-10 C) to 400 K(127 C)
Required
Heat needed
Solution
1. raise the temperature(-10 C to 0 C)⇒c ice=2.09 J/g C
2. phase change (ice to water)⇒Heat of fusion water=334 J/g
3. raise the temperature(0 C to 100 C)⇒c water= 4.18 J/g C
4. phase change(water to vapor)⇒heat of vaporization water=2260 J/g
5. raise the temperature(100 C to 127 C)⇒c vapor=2.09 J/g C
Total heat :
1170.4+18704+23408+126560+3160.08=173,002.48 J=173 kJ